Buell Wesley Frazier testified that he stood in the center at the top of the steps of the entrance of the TSBD during the assassination. He was shown this Darnell image in 2014:
He was asked "'By the way, Mr. Frazier, is that you?' To that he responded, 'very probably ... look at the hairline.'" *
More than "very probably." There's no other possible response. The circled figure is standing exactly where Frazier he said he was standing and the resemblance is striking.